/**
 * Popover弹出层，
 * @class BI.Popover
 * @extends BI.Widget
 */
BI.Popover = BI.inherit(BI.Widget, {
    _constant: {
        SIZE: {
            SMALL: "small",
            NORMAL: "normal",
            BIG: "big",
        },
        MAX_HEIGHT: 600
    },

    props: {
        baseCls: "bi-popover bi-card bi-border-radius",
        size: "normal", // small, normal, big
        logic: {
            dynamic: false,
        },
        header: null,
        headerHeight: 40,
        body: null,
        footer: null,
        footerHeight: 44,
        closable: true, // BI-40839 是否显示右上角的关闭按钮
        bodyHgap: 20,
        bodyTgap: 10
    },

    render: function () {
        var self = this; var o = this.options;
        var c = this._constant;
        this.startX = 0;
        this.startY = 0;
        var size = this._calculateSize();
        this.tracker = new BI.MouseMoveTracker(function (deltaX, deltaY) {
            var W = BI.Widget._renderEngine.createElement("body").width();
            var H = BI.Widget._renderEngine.createElement("body").height();
            self.startX += deltaX;
            self.startY += deltaY;
            self.element.css({
                left: BI.clamp(self.startX, 0, W - self.element.width()) + "px",
                top: BI.clamp(self.startY, 0, H - self.element.height()) + "px",
            });
            // BI-12134 没有什么特别好的方法
            BI.Resizers._resize({
                target: self.element[0],
            });
        }, function () {
            self.tracker.releaseMouseMoves();
        }, _global);
        var items = [{
            el: {
                type: "bi.htape",
                cls: "bi-message-title bi-header-background",
                ref: function (_ref) {
                    self.dragger = _ref;
                },
                items: [{
                    type: "bi.absolute",
                    items: [{
                        el: BI.isPlainObject(o.header) ? BI.extend({}, o.header, {
                            extraCls: "bi-font-bold",
                        }) : {
                            type: "bi.label",
                            cls: "bi-font-bold",
                            height: o.headerHeight,
                            text: o.header,
                            title: o.header,
                            textAlign: "left",
                        },
                        left: 20,
                        top: 0,
                        right: 0,
                        bottom: 0,
                    }],
                }, {
                    el: o.closable ? {
                        type: "bi.icon_button",
                        cls: "bi-message-close close-font",
                        height: o.headerHeight,
                        handler: function () {
                            self.close();
                        },
                    } : {
                        type: "bi.layout",
                    },
                    width: 56,
                }],
                height: o.headerHeight,
            },
            height: o.headerHeight,
        }, o.logic.dynamic ? {
            el: {
                type: "bi.vertical",
                scrolly: true,
                cls: "popover-body",
                ref: function () {
                    self.body = this;
                },
                css: {
                    "max-height": this._getSuitableBodyHeight(c.MAX_HEIGHT - o.headerHeight - (o.footer ? o.footerHeight : 0) - o.bodyTgap),
                    "min-height": this._getSuitableBodyHeight(size.height),
                },
                items: [{
                    el: o.body,
                }],
            },
            hgap: o.bodyHgap,
            tgap: o.bodyTgap,
        } : {
            el: {
                type: "bi.absolute",
                items: [{
                    el: o.body,
                    left: o.bodyHgap,
                    top: o.bodyTgap,
                    right: o.bodyHgap,
                    bottom: 0,
                }],
            },
        }];
        if (o.footer) {
            items.push({
                el: {
                    type: "bi.absolute",
                    items: [{
                        el: o.footer,
                        left: 20,
                        top: 0,
                        right: 20,
                        bottom: 0,
                    }],
                    height: o.footerHeight,
                },
                height: o.footerHeight,
            });
        }

        return BI.extend({
            type: o.logic.dynamic ? "bi.vertical" : "bi.vtape",
            items: items,
            width: this._getSuitableWidth(size.width),
        }, o.logic.dynamic ? {
            type: "bi.vertical",
            scrolly: false,
        } : {
            type: "bi.vtape",
            height: this._getSuitableHeight(size.height),
        });
    },

    mounted: function () {
        var self = this; var o = this.options;
        this.dragger.element.mousedown(function (e) {
            var pos = self.element.offset();
            self.startX = pos.left;
            self.startY = pos.top;
            self.tracker.captureMouseMoves(e);
        });
    },

    _getSuitableBodyHeight: function (height) {
        var o = this.options;
        var c = this._constant;
        return BI.clamp(height, 0, BI.Widget._renderEngine.createElement("body")[0].clientHeight - o.headerHeight - (o.footer ? o.footerHeight : 0) - o.bodyTgap);
    },

    _getSuitableHeight: function (height) {
        return BI.clamp(height, 0, BI.Widget._renderEngine.createElement("body")[0].clientHeight);
    },

    _getSuitableWidth: function (width) {
        return BI.clamp(width, 0, BI.Widget._renderEngine.createElement("body").width());
    },

    _calculateSize: function () {
        var o = this.options;
        var size = {};
        if (BI.isNotNull(o.size)) {
            switch (o.size) {
                case this._constant.SIZE.SMALL:
                    size.width = 450;
                    size.height = 200;
                    size.type = "small";
                    break;
                case this._constant.SIZE.BIG:
                    size.width = 900;
                    size.height = 500;
                    size.type = "big";
                    break;
                default:
                    size.width = 550;
                    size.height = 500;
                    size.type = "default";
            }
        }

        return {
            width: o.width || size.width,
            height: o.height || size.height,
            type: size.type || "default",
        };
    },

    hide: function () {

    },

    open: function () {
        this.show();
        this.fireEvent(BI.Popover.EVENT_OPEN, arguments);
    },

    close: function () {
        this.hide();
        this.fireEvent(BI.Popover.EVENT_CLOSE, arguments);
    },

    setZindex: function (zindex) {
        this.element.css({ "z-index": zindex });
    },

    destroyed: function () {},
});

BI.shortcut("bi.popover", BI.Popover);

BI.BarPopover = BI.inherit(BI.Popover, {
    _defaultConfig: function () {
        return BI.extend(BI.BarPopover.superclass._defaultConfig.apply(this, arguments), {
            btns: [BI.i18nText("BI-Basic_Sure"), BI.i18nText("BI-Basic_Cancel")],
        });
    },

    beforeCreate: function () {
        var self = this; var o = this.options;
        o.footer || (o.footer = {
            type: "bi.right_vertical_adapt",
            lgap: 10,
            items: [{
                type: "bi.button",
                text: this.options.btns[1],
                value: 1,
                level: "ignore",
                handler: function (v) {
                    self.fireEvent(BI.Popover.EVENT_CANCEL, v);
                    self.close(v);
                },
            }, {
                type: "bi.button",
                text: this.options.btns[0],
                warningTitle: o.warningTitle,
                value: 0,
                handler: function (v) {
                    self.fireEvent(BI.Popover.EVENT_CONFIRM, v);
                    self.close(v);
                },
            }],
        });
    },
});

BI.shortcut("bi.bar_popover", BI.BarPopover);

BI.Popover.EVENT_CLOSE = "EVENT_CLOSE";
BI.Popover.EVENT_OPEN = "EVENT_OPEN";
BI.Popover.EVENT_CANCEL = "EVENT_CANCEL";
BI.Popover.EVENT_CONFIRM = "EVENT_CONFIRM";